Two replacement plastic pearl-like tuning knobs for vintage GOTOH mandolin pegs. These are spares, removed from a peg that broke a while ago, as the knobs tend to crack over time with use. They measure approximately 13.5 mm in diameter and 7 mm thick. They are old and show some wear, dirt, and scratches. As shown in the photos, there are marks from the plastic injection points. There may also be lines (not cracks) along the pearl pattern on the button. These are for vintage GOTOH pegs only, as the hole shape on current models has changed and will not fit. Vintage shafts have a square hole for insertion, as shown in the photos. (Current models have a track-like shape.) The photos at the end show F-type and A-type flat mandolins, and these knobs can be used if the button is secured with a screw like this. The price is for two knobs. Please inquire if you need more than two (shipping costs will be reduced). Also, please inquire if you need the screws to attach the buttons (last photo). Please understand that these have been stored at home for a long time before purchasing. Shipping and handling will cost over 300 yen, but I will cover it.